Pneumatic tire.



J. J. LUCK.

PNEUMATIC TIRE. I LPPLIOATION FILED JAN. 24, 1913.

1,081,846. Patented Dec. 16, 1913.

2 sums-sum 1. I

J. .T. LUCK.

PNEUMATIC TIRE.

APPLICATION FILED JAN. 24,1913.

Patented Deb. 16, 1913.

2 SHEETS-SHEET 2.

JOHN J". LUCKFOF SAN ANTONIO, TEXAS.

PNEUMATIC TIRE.

Specification of Letters Patent,

Patented Dec. 16,1?)13.

Application filed January 24, 1913. Serial No. 744,020.

I To allwhom it may concern Be itknown that I, Jorm J. LUCK, a citizen of the United States, residing at San Antonio, in the county of B'exar and State of Texas, have invented new and useful Improvements in Pneumatic Tires, of which the following is a specification.

The-primary purpose of this invention is the provision of a tire for vehicle wheels possessing resilient qualities equaling the meumatic tire as ordinarily constructed, but which is. not susceptible to puncture, rim cut or blow-out,thereby overcoming the objections urged against the general use of the pneumatic tire as ordinarily constructed and adding largely to the convenience,-comfort and pleasure of the motorist. The invention provides a tire of the char acter hereinbefore mentioned embodying a hollow rim, a pneumatic tube located within the rim, a treadplaced against the outer Side of the pneumatic tube and movable within the rim and of such construction as to practically prevent any sharp object from piercing the tread and penetrating the pneumatic tube, a seat between the base of the hollow rim and the pneumatic tube, and means for preventing relative displacement of the parts.

The invention furtherconsists of the peculiar formation of the hollow rim, the

means for connecting the parts of such rim to one another and to the felly of the wheel,

and the means for holding the pneumatic tube in a given position to guard against creeping and abrasive action, the hollow -rim and pneumatic tube being of such relative dimensions as to provide side spaces into which the pneumatic tube may expand when subjected to compression when sustaining the load.

of the specification, Figure 1 is a view in elevation of part of a pneumatic tire em bodying theinvention, portions being broken away to show more clearly the rela tionship of the component elements. Fig. 2

is a transverse section on the line w-w of Fig. 1. 3 Fig. 3 is a modification, showing r1bs provided upon the sides of thepneumatic tube to form interlocking. connection with the seat or filler. Fig. 4 is a further modification showing the pneumatic tube corrugated upon its inner and outer sides ,to make interlocking connection with the seat and the tread. Fig. 5 is a sectional view of a further modification, showing the tread .formed with side flaps, the latter havmg ribs along their free edges to engage grooves in the seat or filler.

Corresponding and like parts are referred to in the following description, and indicated in all the. views 05 the drawings, by the same reference characters.

. While the invention provides a pneumatic tire designed most especially for automobiles it is to be understoodthat such tire may be applied to vehicle wheels enerally. a

The particular constructlon of the wheel is unimportant so long as it embodies a folly A or like part to which the tire may be fitted, said tire embodying a hollow rim which is arranged with the hollow side facas C, are formed as one part. and the side.

member C C is separate, thereby admittin of the pneumatic tube, the seat or filler an the tread being easily placed in. posit-ion or removed from the rim as occasion may require. The base portion 13 of the hollow rim fits close against the outer side of the folly A and is secured thereto in any way. The side members C and C C curve outwardly between their inner and outer edges. The outer edge portions of the members C and C G are parallel, as indicated at 1, to admit of the tread having an in and out movement and the inner. edge portions of such side members are outwardly curved, as indicated at 2, to receive correspondingly curved portions of the seat or filler I,

whereby such seat is retained in place.

seat or filler are further made secure by -means of transverse bolts or iastenings D,

which pass through openings formed there in, the heads E of the bolts conforming to the outwardly curved portion 2 of the side member G C andthe projectingends of the bolts receiving washers F and nuts G, the inner sides of, the washers F conforming to the outwardly curved portion 2 of the side member C. The bolts H extend in opposite directions and constitute stays or braces. The inner ends of the bolts H extend through the telly A approximately on a medial plane and said bolts pass through the base A and side members of the rim in a diagonal direction.

The seat or filler I comprises similar parts or sections and may be formed of any suitable material, either metal or, wood or a combination thereof. Of the metals aluminuns is preferred because of itslightnessand strength. Each of the halves orparts of the seat or filler may comprise any number of sections. The outer side of the seat or filler is made concave to conform to the inner portion of the pneumatic tube. Grooves or channels M are formed in side portions of the seat or filler and are adapted-to receive ribs N forming a part of the pneumatic tube or a shoe inclosing the outer portion thereof. The portions of the seat exterior to the grooves M are made rounding to avoid injurious contact with the pneumatic tube or its protective and reinforcing shoe. Grooves 3 are formed in the outcr'sides of the seat or filler I to provide clearance for the stay bolts H, such grooves admitting of the seat or filler being placed in position or removed from the rim with the greatest facility.

The pncum atic tube K may be of any. construction and is of such relative size compared rim as to leave spaces P between its sides and the side members C and C C of the rim.

into which the pneumatic tube may expand when subjected to vertical pressure, as when sustaining the' load. The construction is such as to render, it. necessary to prevent creeping of tliepneum.ati c tube and to hold it me given relative'position, hence securing means have been devised and in one form, as indicated most clearly in Fig. 8,

'the pneumatic tube is constructed of layers oflcanvas and rubber and is provided at its sides with ribs N, which are adapted to enter the grooves or channels M of the seat or filler. To further guard against movement the outer side of the inner portion of the pneumatic tube is corrugated, as indicated at 4:, and matches corresponding corrugations formed upon the adjacent concave face noeneae with the spaceinclosed by the hollow' of the seat or filler I. When the pneumatic tube is of usual-construction, such as commonly providedin pneumatic tires, it is necessary to inclose' the same in order to limit its expansion whenv inflated and for this purpose a shoe 0 is employed, said shoe having ribs N along its edges to enter-the grooves or channels The tread Q, is yieldable, being preferably constructed of rubber and is of-a sufficient thickness to prevent any sharp object from penetrating it and piercing the pneumatic tube. The tread Q fits between the outer' parallel edge portions 1 of the side members of the hollow rimand is supported upon the pneumatic tube K and is movable in anianner somewhat similar to the outer portion of a pneumatic tire. Suitable packing 5 is interposed between the side por-- tions of the tread Q, and the outer portions 1 of the side members of the rim, such packing being fitted in grooves S formed in the sides of the tread. This packingprevents foreign matter closed by the rim. I11 order to hold. the tread in proper position it is necessary to prevent relative turning movement and this may be effected in a number of ways such as interlocking means between. the tread and pneumatic tube'or by forming the rotective shoe as a part of the tread, as in icated in Fig. 5. As shown in Fig. 4 theinner side of the tread Q has corrugations 6, which match corresponding corrugations formed upon the outer sideof the pneumatic tube. In the form shown in Fig. 5, the shoe consists of side flaps which extend along opposite sides of the pneumatic tube and inter-' lock with the seat or filler ,I in the manner 'hereinbefore stated. The pneumatic tube is adapted to be inflated in the usual manner,

an air valve X being provided for the purpose.

From the-ioregoing description, taken in connection with the accompanying drawings, the advantages of the construction and of the method of operation will bereadily apparent to those skilled inthe art to which the invention appertains, and while I have from I entering the space indescribed the principle of operation of the invention, together with the device which I now consider'to be the best embodiment thereof l desire to have it understood that the device shown is merely illustrative, and that such changes may be made when desired as are within the scope of the claim appended hereto.

Having thus described the invention what i is claimed as new,-is:-

In combination a telly, a hollow rim supported upon the telly,

cated withinthe rim upon a two part filler 10- the base thereof, 7 stay bolts connecting the rim with the telly" and extending across the anglestormd between the side members and base, other bolts passing through openings in the side members of the rim and connecting the parts of the filler a pneumatic tube located Within the rim upon the filler, and a tread mount- \Vitnesses:

ed upon the pneumatic tube and closing the H. J. YoUNG, open side of the hollow rim. I LY'ILE V. GOSLING.

In testimony whereof I afiix my signature 1n presence of two witnesses.

JOHN J. LUCK. 

